body{
	background:#fff;
	font-size: 14px;
}
.frequency{
	position:relative
}
.audio_img>img{
	width: 100%;
	vertical-align: middle;
}
.audio>audio{
	width:100%;
	position: absolute;
	bottom: 0;
	display: none;
	border-bottom:1px solid #F2F2F2;
}
.mask{
	width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    z-index: 1;
    background: #000;
    opacity: 0.3;
}
.play{
	width:56px;
	border-radius:50%;
	overflow: hidden;
	position: absolute;
	top:50%;
	left: 50%;
	margin-left:-23px;
	margin-top:-23px;
	z-index:100;
}
.play>img{
	width:100%;
}
.circumstantial {
	background: #fff;
}

.introduction {
	background: #fff;
	padding: 20px 16px;
	border-bottom: 1px solid #F2F2F2;
}

.epitome {
	color: #40CC8B;
}

.summary {
	font-size: 14px;
	color: #595959;
	margin: 10px 0 4px;
}
.introduction:last-child{
	border:none;
}
